django框架两个使用模板实例

2023-08-04 16:21:05 291

fromdjango.dbimportmodels #Createyourmodelshere. classBook(models.Model): title=models.CharField(max_length=32,unique=True) price=models.DecimalField(max_digits=8,decimal_places=2,null=True) pub_date=models.DateField() publish=models.CharField(max_length=32) is_pub=models.BooleanField(default=True) authors=models.ManyToManyField(to="Author") classAuthorDetail(models.Model): gf=models.CharField(max_length=32) tel=models.CharField(max_length=32) classAuthor(models.Model): name=models.CharField(max_length=32) age=models.IntegerField() #与AuthorDetail建立一对一的关系 #ad=models.ForeignKey(to="AuthorDetail",to_field="id",on_delete=models.CASCADE,unique=True) #OneToOneField表示创建一对一关系。on_delete=models.CASCADE表示级联删除。假设a表删除了一条记录，b表也还会删除对应的记录 ad=models.OneToOneField(to="AuthorDetail",to_field="id",on_delete=models.CASCADE,)

fromdjango.conf.urlsimporturl fromdjango.contribimportadmin fromapp01importviews urlpatterns=[ url(r'^admin/',admin.site.urls), #url(r'',views.index),#这一条不能放上面，会造成死循环 url(r'index/$',views.index), url(r'books/add/$',views.add), url(r'books/manage/',views.manage), url(r'books/delete/(?P\d+)',views.delete), url(r'books/modify/(?P\d+)',views.modify), ]

fromdjango.shortcutsimportrender,HttpResponse fromapp01importmodels #Createyourviewshere. defindex(request): ret=models.Book.objects.all().exists()#True和False ifret: book_list=models.Book.objects.all() returnrender(request,'index.html',{'book_list':book_list}) else: #hint='' hint='' returnHttpResponse(hint) defadd(request): ifrequest.method=="POST": title=request.POST.get("title") price=request.POST.get("price") pub_date=request.POST.get("pub_date") publish=request.POST.get("publish") is_pub=request.POST.get("is_pub") #插入一条记录 obj=models.Book.objects.create(title=title,price=price,publish=publish,pub_date=pub_date,is_pub=is_pub) print(obj.title) hint='' returnHttpResponse(hint) returnrender(request,"add.html") defmanage(request): ret=models.Book.objects.all().exists() print(ret) ifret: book_list=models.Book.objects.all() returnrender(request,"manage.html",{"book_list":book_list}) else: hint='' returnHttpResponse(hint) defdelete(request,id): ret=models.Book.objects.filter(id=id).delete() print('删除记录%s'%ret) ifret[0]: hint='' returnHttpResponse(hint) else: hint='' returnHttpResponse(hint) defmodify(request,id): ifrequest.method=="POST": title=request.POST.get('title') price=request.POST.get("price") pub_date=request.POST.get("pub_date") publish=request.POST.get("publish") is_pub=request.POST.get("is_pub") #更新一条记录 ret=models.Book.objects.filter(id=id).update(title=title,price=price,publish=publish,pub_date=pub_date, is_pub=is_pub) print('更新记录%s'%ret) ifret:#判断返回值为1 hint='' returnHttpResponse(hint)#js跳转 else:#返回为0 hint='' returnHttpResponse(hint)#js跳转 book=models.Book.objects.get(id=id) returnrender(request,"modify.html",{"book":book})

{%extends'base.html'%} {%blocktitle%} 查看书籍 {%endblocktitle%} {%blockcontent%}

查看书籍

名称价格出版日期出版社是否出版 {%forbookinbook_list%} {{book.title}} {{book.price}} {{book.pub_date|date:"Y-m-d"}} {{book.publish}} {%ifbook.is_pub%} 已出版 {%else%} 未出版 {%endif%} {%endfor%} {%endblockcontent%}

{%blocktitle%} Title {%endblocktitle%} 书籍操作

查看书籍 Panelcontent

添加书籍 Panelcontent

管理书籍 Panelcontent {%blockcontent%} {%endblockcontent%}

{%extends'base.html'%} {%blocktitle%} 管理书籍 {%endblocktitle%} {%blockcontent%}

管理书籍

名称价格出版日期出版社是否出版删除编辑 {%forbookinbook_list%} {{book.title}} {{book.price}} {{book.pub_date|date:"Y-m-d"}} {{book.publish}} {%ifbook.is_pub%} 已出版 {%else%} 未出版 {%endif%}

删除

编辑 {%endfor%} {%endblockcontent%}

{%extends'base.html'%} {%blocktitle%} 修改书籍 {%endblocktitle%} {%blockcontent%}

修改书籍

{%csrf_token%} 书籍名称

价格

出版日期

出版社

是否出版 {%ifbook.is_pub%} 已出版未出版 {%else%} 已出版未出版 {%endif%} {%endblockcontent%}

fromdjango.dbimportmodels #Createyourmodelshere. classBook(models.Model): title=models.CharField(max_length=32) price=models.DecimalField(max_digits=6,decimal_places=2) create_time=models.DateField() memo=models.CharField(max_length=32,default="") publish=models.ForeignKey(to="Publish",default=1) author=models.ManyToManyField("Author")#on_delete=models.CASCADE()默认级联删除 def__str__(self): returnself.title classPublish(models.Model): name=models.CharField(max_length=32) email=models.CharField(max_length=32) classAuthor(models.Model): name=models.CharField(max_length=32) def__str__(self):returnself.name

fromdjango.conf.urlsimporturl,include fromdjango.contribimportadmin fromapp01importviews urlpatterns=[ url(r'^admin/',admin.site.urls), url(r'^books/$',views.books),#查看 url(r'^addbook/$',views.addbook),#增加 url(r'^delbook/(\d+)/$',views.delbook),#删除 url(r'editbook/(\d+)/$',views.editbook),#修改 ]

fromdjango.shortcutsimportrender,HttpResponse,redirect from.modelsimport* defbooks(request): book_list=Book.objects.all() returnrender(request,"books.html",locals()) defaddbook(request): ifrequest.method=="POST": title=request.POST.get("title")#get方法取的是html页面中的name属性 price=request.POST.get("price") date=request.POST.get("date") publish_id=request.POST.get("publish_id") #author_id_list=request.POST.get("author_id_list")#此方法只能取到最后一个值 author_id_list=request.POST.getlist("author_id_list")#有多个值的注意要用getlist #绑定书籍与出版社一对多的关系 obj=Book.objects.create(title=title,price=price,create_time=date,publish_id=publish_id) #绑定书籍与作者多对多的关系 obj.author.add(*author_id_list) #obj.author.remove(1,2)#解除关系 #obj.author.clear()#清空所有关系 returnredirect("/books/") else: publish_list=Publish.objects.all() author_list=Author.objects.all() returnrender(request,"addbook.html",locals()) defdelbook(request,id): Book.objects.filter(id=id).delete() returnredirect("/books/") defeditbook(request,id): ifrequest.method=="POST": title=request.POST.get("title")#get方法取的是html页面中的name属性 price=request.POST.get("price") date=request.POST.get("date") publish_id=request.POST.get("publish_id") author_id_list=request.POST.getlist("author_id_list") Book.objects.filter(id=id).update(title=title,price=price,create_time=date,publish_id=publish_id) book=Book.objects.filter(id=id).first() #book.author.clear() #book.author.add(*author_id_list) book.author.set(author_id_list)#相当于上面两条 returnredirect("/books/") edit_obj=Book.objects.filter(id=id).first()#加first从queryset得到models对象 publish_list=Publish.objects.all() author_list=Author.objects.all() returnrender(request,"editbook.html",locals())

Title

添加数据序号书名价格出版时间出版社作者操作 {%forbookinbook_list%} {{forloop.counter}} {{book.title}} {{book.price}} {{book.create_time|date:"Y-m-d"}} {{book.publish.name}} {%forauthorinbook.author.all%} {{author.name}} {%ifnotforloop.last%} , {%endif%} {%endfor%} 删除编辑 {%endfor%}

Title

{%csrf_token%}

书籍名称

书籍价格

出版日期

{%forpublishinpublish_list%} {%ifedit_obj.publish==publish%} {{publish.name}} {%else%} {{publish.name}} {%endif%} {%endfor%}

{%forauthorinauthor_list%} {%ifauthorinedit_obj.author.all%} {{author.name}} {%else%} {{author.name}} {%endif%} {%endfor%}

django框架两个使用模板实例

查看书籍

添加书籍

管理书籍

修改书籍

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